The paper length is not relevant since the chart flows from one page to the next.
Mobile
in.
mm
Portrait
2.75
70
For smart phones, not for printing
Landscape
5.5
140
For smart phones, not for printing
USA & Canada
in.
mm
Letter Portrait
8.5
216
Also Legal Portrait
Letter Landscape
11
279
Legal Landscape
14
356
Also Ledger Portrait
Ledger Landscape
17
432
International
in.
mm
A5 Portrait
5.82
148
A4 Portrait
8.25
210
Also A5 Landscape
A4 Landscape
11.71
297
Also A3 Landscape
A3 Landscape
16.54
420
The Text+ programs assume that the right and left margins are each about 25mm (1/2 inch) wide.
On the Format for Printing page, differences in page margins can be accommodated by the "fudge factor":
Mother: Sidney Ann Horton (2 Aug 1858 Tishomingo County, Mississippi, USA - 28 May 1942 Fort Sumner, De Baca County, New Mexico, USA)
Clara Eugena Cooper
(28 Dec 1884 Fannin, Goliad County, Texas, USA - 15 Jan 1988 Modesto, Stanislaus County, California, USA)
Joel Sidney Criswell
(10 Nov 1883 Nolan County, Texas, USA - 21 Jan 1974 Modesto, Stanislaus County, California, USA)
         ├─Advel Lee Criswell
(19 Sep 1908 Dodson, Quay County, New Mexico, USA - 7 Jul 1987 Turlock, Stanislaus County, California, USA)
         │ + Virginia Nellie Olds
(18 Jul 1914 Lapwai, Nez Perce County, Idaho, USA - 21 Apr 2008 Modesto, Stanislaus County, California, USA)
         │ + Gladys Nichols
(California, USA - ??)
         │ + Living
         ├─Lester Virgil Criswell
(27 Jun 1914 New Mexico, USA - Mar 1977 Modesto, Stanislaus County, California, USA)
         │ + Living
         ├─Mabel Florence Criswell
(Abt 1916 New Mexico, USA - ??)
         ├─Lenora Eugene Criswell
(17 Oct 1921 New Mexico, USA - 30 Aug 1979 Modesto, Stanislaus County, California, USA)
         │ + Donald Lee Padgett
(6 Dec 1920 Texas, USA - 23 Feb 1986 La Grange, Stanislaus County, California, USA)
         ├─Fay Criswell
(15 Mar 1923 New Mexico, USA - 29 Oct 1995 Oroville, Butte County, California, USA)